Travel writer John Clarke writes about Sardinia. Along the way, visit ancient towns and medieval castles that "cling to mountain tops," the nuraghi (stone-built conical towers dating back to the 1500s), the neolithic necropolis of Bonorvo which dates back to 3500-2700 B.C. and the Spanish ruins of Burgos.

In the market for a genuine Welsh castle? Granted, it was built in 1819, but Gwyrch Castle, located near Abergele in north Wales, is still a crenellated, towered and turreted wonder of architecture on 40 acres of land.

Archaeologists from Humber Field Archaeology have unearthed "revealing traces of substantial medieval buildings 'which could prove to be an inn which may have welcomed pilgrims who journeyed far and wide to visit the historic town.'"